Commit Graph

51954 Commits

Author SHA1 Message Date
Cheng Xing
ffd48f6311 Added sig-storage labels to upgrade tests and moved them to appropriate directory 2017-07-24 13:23:43 -07:00
Michal Fojtik
d8a42416a6
update staging clients 2017-07-24 22:05:21 +02:00
Michal Fojtik
dad4ee3108
regenerate clients to pickup updated genclient:noStatus comment 2017-07-24 22:05:21 +02:00
Michal Fojtik
976488efec
update tags in types for new genclient syntax 2017-07-24 22:05:21 +02:00
Michal Fojtik
d7e3029d7a
unify tag syntax for genclient tags and add onlyVerbs and skipVerbs 2017-07-24 22:05:21 +02:00
Kubernetes Submit Queue
84db0a9487 Merge pull request #49428 from caesarxuchao/fix-gc-1
Automatic merge from submit-queue

Garbage collector e2e tests create deployments with unique labels, and

Fixes https://github.com/kubernetes/kubernetes/issues/49427

The bug was because two tests point to the same `podTemplate`. One [test](https://github.com/kubernetes/kubernetes/blob/master/test/e2e/apimachinery/garbage_collector.go#L583) changing the "labels" caused the deployment creation in the other test failing, because the selector doesn't match the labels anymore.
2017-07-24 12:31:24 -07:00
Lucas Käldström
aa46947557
kubeadm: Make sure --config can be mixed with --skip-* flags 2017-07-24 22:21:12 +03:00
Solly Ross
3e6bf24e08 [client-go] Add fake dynamic Client/ClientPool
This introduces fake implementations of dynamic.Client and
dynamic.ClientPool.  They function similarly to the fake generated
clientsets, since they're also based in testing.Fake.
2017-07-24 15:21:02 -04:00
Chao Xu
b730c0b46d increate GC orphan test timeout 2017-07-24 11:45:52 -07:00
Kubernetes Submit Queue
fe8f6a1599 Merge pull request #49309 from yujuhong/add-node-e2e-owner
Automatic merge from submit-queue

Add yujuhong to test/e2e_node/OWNERS
2017-07-24 11:06:16 -07:00
Michael Taufen
38aee0464d Providing kubeconfig file is now the switch for standalone mode
Replaces use of --api-servers with --kubeconfig in Kubelet args across
the turnup scripts. In many cases this involves generating a kubeconfig
file for the Kubelet and placing it in the correct location on the node.
2017-07-24 11:03:00 -07:00
Anthony Yeh
283211c1cf
StatefulSet: Remove pod.alpha.kubernetes.io/initialized annotation. 2017-07-24 10:18:47 -07:00
Anthony Yeh
48e8370674
StatefulSet: Stop using initialized annotation in e2e tests.
Instead, use Readiness to pause and resume individual Pods to verify
that the StatefulSet controller performs the right actions one at a
time.
2017-07-24 10:18:47 -07:00
Shyam Jeedigunta
55527036b4 Fix bug in command retrying in kubemark 2017-07-24 17:18:50 +02:00
Kubernetes Submit Queue
d2791d46e3 Merge pull request #49090 from jianglingxia/jlx71815
Automatic merge from submit-queue

installer.go amend some comment

**What this PR does / why we need it**:

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
2017-07-24 08:10:24 -07:00
Kubernetes Submit Queue
b4941d018d Merge pull request #49486 from wojtek-t/fix_ha_master
Automatic merge from submit-queue (batch tested with PRs 45345, 49470, 49407, 49448, 49486)

Fix ha-master tests
2017-07-24 07:40:59 -07:00
Kubernetes Submit Queue
c71ea19656 Merge pull request #49448 from smarterclayton/client_lock
Automatic merge from submit-queue (batch tested with PRs 45345, 49470, 49407, 49448, 49486)

Use a client interface instead of a concrete type
2017-07-24 07:40:57 -07:00
Kubernetes Submit Queue
17b9c21a6a Merge pull request #49407 from liggitt/unstructured-marshaler
Automatic merge from submit-queue (batch tested with PRs 45345, 49470, 49407, 49448, 49486)

Fix unstructured marshaler to handle all JSON types

Split from https://github.com/kubernetes/kubernetes/pull/45294

/assign @wojtek-t
2017-07-24 07:40:53 -07:00
Kubernetes Submit Queue
5dbef94aaf Merge pull request #49470 from jianglingxia/jlx72414
Automatic merge from submit-queue (batch tested with PRs 45345, 49470, 49407, 49448, 49486)

statefulset_expansion.go delete ps define

reopen #46157 

**Release note**:

```release-note
NONE
2017-07-24 07:40:50 -07:00
Kubernetes Submit Queue
d286f56221 Merge pull request #45345 from codablock/storageclass_fstype
Automatic merge from submit-queue (batch tested with PRs 45345, 49470, 49407, 49448, 49486)

Support "fstype" parameter in dynamically provisioned PVs

This PR is a replacement for https://github.com/kubernetes/kubernetes/pull/40805. I was not able to push fixes and rebases to the original branch as I don't have access to the Github organization anymore.

I assume the PR will need a new "ok to test" 

**ORIGINAL PR DESCRIPTION**

**What this PR does / why we need it**: This PR allows specifying the desired FSType when dynamically provisioning volumes with storage classes. The FSType can now be set as a parameter:
```yaml
kind: StorageClass
apiVersion: storage.k8s.io/v1beta1
metadata:
  name: test
provisioner: kubernetes.io/azure-disk
parameters:
  fstype: xfs
```

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #37801

**Special notes for your reviewer**:
The PR also implicitly adds checks for unsupported parameters.

**Release note**:

```release-note
Support specifying of FSType in StorageClass
```
2017-07-24 07:40:47 -07:00
Huamin Chen
3b91bdc261 tune iscsi and fc volume owner
Signed-off-by: Huamin Chen <hchen@redhat.com>
2017-07-24 13:59:06 +00:00
Davanum Srinivas
f4011d485a Set external hostname in local-up-cluster
If we set --external-hostname, then the api server does not look
in the CloudProviderOptions.DefaultExternalHost method. While we
are at it, let's log an info message, so if there is a failure
the operator gets a hint that they can use --external-hostname
to bypass the lookup in the cloud provider. This will enable us
to set the CLOUD_PROVIDER to openstack for example and not have to
really run api server inside a openstack vm.
2017-07-24 07:58:46 -04:00
Jan Pazdziora
6b7d4b7922 Allow unmounting bind-mounted directories.
For bind-mounted directories, the isNotMounted which calls
IsLikelyNotMountPoint fails because the filesystem of the mounted
location and the parent directory are the same.

Addressing:
unmounter.go:59] Warning: Path: /path/.../test-dir already unmounted
2017-07-24 13:33:10 +02:00
Wojciech Tyczynski
5740c7afbf Fix ha_master tests 2017-07-24 12:10:22 +02:00
Kubernetes Submit Queue
6fdf0e4157 Merge pull request #49247 from cblecker/fix-staging-godeps-master
Automatic merge from submit-queue

Fix staging godeps for k8s.io/metrics and k8s.io/kube-gen

**What this PR does / why we need it**:
#49095 introduced an issue with the formatting of the k8s.io/metrics staging godeps. This fixes that issue, and alters the script to prevent it from happening again.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2017-07-24 01:47:37 -07:00
Dr. Stefan Schimanski
263b918541 hack/update-staging-godep.sh: check for staging repos in GOPATH 2017-07-24 10:44:42 +02:00
Dr. Stefan Schimanski
14c50f3c3a apimachinery: fail early with deepcopy problems during roundtrip tests 2017-07-24 10:24:05 +02:00
Jan Safranek
f6a8436504 Fixed glusterfs mount options
Capacity of a slice is the third argument, not the second one.
We use append() to fill the slice, so it should be empty at the beginning
and with the right capacity.
2017-07-24 10:20:39 +02:00
Kubernetes Submit Queue
a6bfeef4fe Merge pull request #48784 from bowei/e2e-net
Automatic merge from submit-queue

Moves networking e2e tests to test/e2e/network
2017-07-24 00:30:14 -07:00
jianglingxia
c412849722 statefulset_expansion.go delete ps define 2017-07-24 14:24:16 +08:00
Kubernetes Submit Queue
4d2a721223 Merge pull request #48707 from danielfm/node-restriction-pod-eviction-subresource
Automatic merge from submit-queue

Allow nodes to create evictions for its own pods in NodeRestriction admission controller

**What this PR does / why we need it**: This PR adds support for `pods/eviction` sub-resource to the NodeRestriction admission controller so it allows a node to evict pods bound to itself.

**Which issue this PR fixes**: fixes #48666

**Special notes for your reviewer**: The NodeRestriction already allows nodes to delete pods bound to itself, so allowing nodes to also delete pods via the Eviction API probably makes sense.

```release-note
NodeRestriction allows a node to evict pods bound to itself
```
2017-07-23 04:16:51 -07:00
Clayton Coleman
b9bebe8a4e
Use a client interface instead of a concrete type
Aids testing
2017-07-22 20:29:48 -04:00
Kubernetes Submit Queue
1bcb381169 Merge pull request #49355 from dhilipkumars/UTDeployment
Automatic merge from submit-queue

deployment: SetNewReplicaSetAnnotations() should compare revisions as numbers than strings

**What this PR does / why we need it**: 
1) SetNewReplicaSetAnnotations() when deployment revision annotation is copied over to RS, it performs a string comparison instead of int comparison, due to this any revision beyond 9 might not get copied.
2) Slightly improves the coverage by adding UT for Annotation related functions
3) Upgrade the test suite to use go-langs sub-test, which is very useful while investigating UT related failures.

```
--- FAIL: TestAnnotationUtils (0.00s)
    --- FAIL: TestAnnotationUtils/SetNewReplicaSetAnnotations (0.00s)
        deployment_util_test.go:1283: Revision Expected=10 Obtained=9
        deployment_util_test.go:1283: Revision Expected=11 Obtained=9
        deployment_util_test.go:1283: Revision Expected=12 Obtained=9
        deployment_util_test.go:1283: Revision Expected=13 Obtained=9
        deployment_util_test.go:1283: Revision Expected=14 Obtained=9
        deployment_util_test.go:1283: Revision Expected=15 Obtained=9
        deployment_util_test.go:1283: Revision Expected=16 Obtained=9
        deployment_util_test.go:1283: Revision Expected=17 Obtained=9
        deployment_util_test.go:1283: Revision Expected=18 Obtained=9
        deployment_util_test.go:1283: Revision Expected=19 Obtained=9
        deployment_util_test.go:1283: Revision Expected=20 Obtained=9
    --- PASS: TestAnnotationUtils/SetReplicasAnnotations (0.00s)
    --- PASS: TestAnnotationUtils/IsSaturated (0.00s)
```

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**: None

```release-note
```
cc: @kargakis
2017-07-22 10:56:55 -07:00
Eric Paris
7c531ecc13 Do not spin forever if kubectl drain races with other removal
In https://github.com/kubernetes/kubernetes/pull/47450 we stopped
returning an error if a pod disappeared before we could remove it.
Instead we just continue to spin forever. Return "success" if a pod
disappeared before we actually removed it.

https://bugzilla.redhat.com/1473777
bug 1473777
2017-07-22 13:39:01 -04:00
Bowei Du
92a8c1fcb0 Moves networking e2e tests to test/e2e/network
This also adds sig-network-{approvers,reviewers} alias
2017-07-22 09:43:42 -07:00
Kubernetes Submit Queue
72b2a03d52 Merge pull request #49289 from kargakis/rename-test-dir-to-allude-sig-apps-ownership
Automatic merge from submit-queue

Rename test dir to allude sig-apps ownership

@kubernetes/sig-apps-pr-reviews other sigs have already followed this pattern and it seems that this is what @kubernetes/sig-testing-misc wants too

Ref https://github.com/kubernetes/kubernetes/issues/49161

ptal
2017-07-22 06:34:40 -07:00
Michail Kargakis
5e93ed27bd
Rename test dir to allude sig-apps ownership
Signed-off-by: Michail Kargakis <mkargaki@redhat.com>
2017-07-22 12:43:36 +02:00
Kubernetes Submit Queue
f26b2956fb Merge pull request #48418 from xiangpengzhao/refactor-create-svc
Automatic merge from submit-queue (batch tested with PRs 49409, 49352, 49266, 48418)

Use helper to init ClusterIP and NodePort in Create of service

**What this PR does / why we need it**:
Make service `Create` more readable and testable.

- use `initClusterIP` introduced in #46197 to init ClusterIP allocation in service `Create`
- add a new helper `initNodePort` to init NodePort allocation in service `Create`
- TBD: add test case for `initNodePort`. This will cover the NodePort allocation process in `Create`. If this PR makes sense, I will write a test case later.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #35354 (not directly. #35354 was fixed by #46197. The idea of this PR is from https://github.com/kubernetes/kubernetes/pull/46197#discussion_r120910077)

**Special notes for your reviewer**:
/cc @thockin @freehan 

**Release note**:

```release-note
NONE
```
2017-07-22 02:05:21 -07:00
Kubernetes Submit Queue
dab16cd1d5 Merge pull request #49266 from MrHohn/e2e-proxy-healthz
Automatic merge from submit-queue (batch tested with PRs 49409, 49352, 49266, 48418)

[e2e] Also verify content returned by kube-proxy healthz url

**What this PR does / why we need it**: Enhance kube-proxy url test. This helps to detect the port collision case --- node-problem-detector also serves /healthz to return 200 ok. Verify the content to confirm /healthz is served by kube-proxy.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: From #49263

**Special notes for your reviewer**:
/assign @freehan @nicksardo 

**Release note**:

```release-note
NONE
```
2017-07-22 02:05:18 -07:00
Kubernetes Submit Queue
f57091472c Merge pull request #49352 from atlassian/fix-scheduler-test
Automatic merge from submit-queue (batch tested with PRs 49409, 49352, 49266, 48418)

Use the yet uninitialized informer factory

`informerFactory` has been started already but the `factory.equivalencePodCache` field has not been initialized yet (done below by `.Create()`). So when Service informer calls `onServiceAdd()`, it tries to access this field and crashes with npe.

The fix is to use `informerFactory2`.
It is a race between listeners called by informer and `.Create()`. Do we run unit/integration tests with race detector switched off?

```
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x14c2c2f]

goroutine 11688 [running]:
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/runtime.HandleCrash(0x0, 0x0, 0x0)
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/runtime/runtime.go:58 +0x126
panic(0x28f5f00, 0x61621c0)
	/usr/local/go/src/runtime/panic.go:489 +0x2cf
k8s.io/kubernetes/plugin/pkg/scheduler/core.(*EquivalenceCache).InvalidateCachedPredicateItemOfAllNodes(0x0, 0xc4202a9020)
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/plugin/pkg/scheduler/core/equivalence_cache.go:141 +0x5f
k8s.io/kubernetes/plugin/pkg/scheduler/factory.(*ConfigFactory).onServiceAdd(0xc424ad5950, 0x2cf6fc0, 0xc4249c05a0)
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:347 +0x53
k8s.io/kubernetes/plugin/pkg/scheduler/factory.(*ConfigFactory).(k8s.io/kubernetes/plugin/pkg/scheduler/factory.onServiceAdd)-fm(0x2cf6fc0, 0xc4249c05a0)
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:247 +0x3e
k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache.ResourceEventHandlerFuncs.OnAdd(0xc423a47310, 0xc423a47320, 0xc423a47330, 0x2cf6fc0, 0xc4249c05a0)
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache/controller.go:195 +0x49
k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache.(*ResourceEventHandlerFuncs).OnAdd(0xc423938ce0, 0x2cf6fc0, 0xc4249c05a0)
	<autogenerated>:54 +0x73
k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache.(*processorListener).run(0xc424a698b0)
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache/shared_informer.go:544 +0x287
k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache.(*processorListener).(k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache.run)-fm()
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/tools/cache/shared_informer.go:380 +0x2a
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.(*Group).Start.func1(0xc424a87868, 0xc423a47370)
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:71 +0x4f
created by k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.(*Group).Start
	/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:72 +0x62
```

**Special notes for your reviewer**:
Found while working on #47045.

**Release note**:

```release-note
NONE
```
2017-07-22 02:05:14 -07:00
Kubernetes Submit Queue
b0c6537de6 Merge pull request #49409 from aveshagarwal/master-scheduler-fix-duplicaton
Automatic merge from submit-queue (batch tested with PRs 49409, 49352, 49266, 48418)

Fix duplication in scheduler.

**What this PR does / why we need it**:
This fixes duplicate code in scheduler.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
No issue.
**Special notes for your reviewer**:

**Release note**:

```release-note
```
@kubernetes/sig-scheduling-pr-reviews @bsalamat
2017-07-22 02:05:12 -07:00
zhangxiaoyu-zidif
1b785d09d4 Delete redundant err definition 2017-07-22 16:19:32 +08:00
Kubernetes Submit Queue
32952d9c29 Merge pull request #49399 from timothysc/CRD_version_gate
Automatic merge from submit-queue (batch tested with PRs 49326, 49394, 49346, 49379, 49399)

Update to version gate CRDs to 1.7 and greater

**What this PR does / why we need it**:
Allows e2e's to be tested on earlier version do to version check.  

xref: #49313

**Release note**:
```
NONE
```

/cc @kubernetes/sig-api-machinery-bugs @kubernetes/sig-testing-bugs
2017-07-21 23:23:39 -07:00
Kubernetes Submit Queue
e57e9afbd2 Merge pull request #49379 from aveshagarwal/master-scheduler-issue
Automatic merge from submit-queue (batch tested with PRs 49326, 49394, 49346, 49379, 49399)

Pass clientset's Interface to CreateScheduler.

**What this PR does / why we need it**:
CreateSchedueler takes clientset.Clientset param and passes it to NewConfigFactory which takes clientset.Interface. It'd be better for CreateSchedueler to take clientset.Interface to be in sync with NewConfigFactory and it would be easier to reuse CreateSchedueler in implementations which relies on interface rather than actual client implementation.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
No issue.
@kubernetes/sig-scheduling-pr-reviews @bsalamat
2017-07-21 23:23:37 -07:00
Kubernetes Submit Queue
a79e6b183d Merge pull request #49346 from caesarxuchao/generate-to-client-go
Automatic merge from submit-queue (batch tested with PRs 49326, 49394, 49346, 49379, 49399)

Make client-go authoritative

client-go now is authoritative except for `client-go/pkg/version`, which I think we can leave as is for a while.
2017-07-21 23:23:35 -07:00
Kubernetes Submit Queue
9712a80505 Merge pull request #49394 from wwwtyro/rye/rbd-stats-improvement
Automatic merge from submit-queue (batch tested with PRs 49326, 49394, 49346, 49379, 49399)

more robust stat handling from ceph df output in the kubernetes-master charm create-rbd-pv action

**What this PR does / why we need it**: more robust stat handling from ceph df output in the kubernetes-master charm create-rbd-pv action

**Release note**:
```release-note
more robust stat handling from ceph df output in the kubernetes-master charm create-rbd-pv action
```
2017-07-21 23:23:32 -07:00
Kubernetes Submit Queue
1dbe09b1f6 Merge pull request #49326 from deads2k/cli-16-all
Automatic merge from submit-queue

add cronjobs to all

Categories were added to the discovery API, but the `kubectl` plumbing didn't make it.  We *did* make `kubectl all` gate on discovery information, so it can least be a superset.  

`cronjobs` are user resources, so I've added them to the list.

@kubernetes/sig-cli-misc 

```release-note
added cronjobs.batch to all, so kubectl get all returns them.
```
2017-07-21 23:18:58 -07:00
Kubernetes Submit Queue
c1c7193b4d Merge pull request #46514 from ravisantoshgudimetla/scheduler_taints_refactor
Automatic merge from submit-queue (batch tested with PRs 49420, 49296, 49299, 49371, 46514)

Refactoring taint functions to reduce sprawl

**What this PR does / why we need it**:

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #45060

**Special notes for your reviewer**:
@gmarek @timothysc @k82cn @jayunit100 - I moved some fn's to helpers and some to utils. LMK, if you are ok with this change.

**Release note**:

```release-note
NONE
```
2017-07-21 22:23:24 -07:00
Kubernetes Submit Queue
b9e549e7cf Merge pull request #49371 from juju-solutions/bug/pv-metric
Automatic merge from submit-queue (batch tested with PRs 49420, 49296, 49299, 49371, 46514)

Fix: PV metric is not namespaced

**What this PR does / why we need it**: The PV metric of juju deployments is not namespaced. This PR fixes this bug. 

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/348

**Special notes for your reviewer**:

**Release note**:

```NONE
```
2017-07-21 22:23:21 -07:00
Kubernetes Submit Queue
4560beb28f Merge pull request #49299 from dims/delay-looking-for-instance-id
Automatic merge from submit-queue (batch tested with PRs 49420, 49296, 49299, 49371, 46514)

Avoid looking up instance id until we need it

**What this PR does / why we need it**:

currently kube-controller-manager cannot run outside of a vm started
by openstack (with --cloud-provider=openstack params). We try to read
the instance id from the metadata provider or the config drive or the
file location only when we really need it. In the normal scenario, the
controller-manager uses the node name to get the instance id.
41541910e1/pkg/volume/cinder/attacher.go (L149)

The localInstanceID is currently used only in the test case, so let
us not read it until it is really needed.

So let's try to find the instance-id only when we need it.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2017-07-21 22:23:19 -07:00